Kelp reduction.



H. WILSON. KBLP REDUCTION.

APPLICATION FILED DBG. 26, 1912.

1,1 16,965. Patented N0v.10,1914.

2 SHEETS-SHEET l.

-r- IM l .ll'lmsr vw II A'rro NEY )2/W y I I BYJMM/ H. WILsoN. KELPREDUCTION. APPLIATION FILED 13220.26, 1912. 1 1 16 965. PatentedN0v.10,1914.. 2 SHEETS-SHEET 2.

` INVENTOR jr'ty )77529022 WITNESSES:

unirsi) srnrus Paire/Nr .oF-mon.

WILSON, OF SAN FRANGISGO, ALIFORNMVAGNOR EDO PACIFIC KELI. COM- PANX, 0FSANFRANCISCO, CAIJ-ORNIA, A CORBQMTIONQOF.

'KEEP 'REDUCTION'.

Spea'tion of Letters Patent.

cPatenltedNov. 1G, 1314.

To allfwhomrit mag/conocen.

Beit known that il, .Hanny WILSON, .-a citizen of the United iStates,residing in the city and-nounty ofiSan Francisco and State ofCalifornia, .have invented ,new .land useful Improvements in Kelp4Reduction, of which :the followingl is a speci-cation.

'The present :invention relates to a :mechanical device -land pnoess forthegextraction of potassium, sodium, Vmagnesium and cailoiumsatts withtheir :combining suiates,

chloride, -carbtmates and .iodids from .all

manner fof .lseafwoed or help, together with u complete; recovery .oforganic eaerhon, lcreof sote,;aoetic acid,:ntone, alcoholand combustiblegas; frome the Volatile content thereof.

'The material lto be recovered isfxiiwided into three distinutyclasses,namely: soluble, insolubleiandfuolatile. The solublefcontainsthe isuliatesychlonids and iodidsf'of "potassium, sodium .and magnesium,andthe sul fates ofmognesium andfoalcium. The Iinsoluble contains fthecarbonatos of :calcium and magnesium. The volatile-containsorganiccarbonor paint pigment, for warnish gum; vegetable creosote,acetic acid, acetone, alcohol@ and :combustible igas.

'The separation .of 4the xeliiererrtsalts zin-the soluble matter and.the fditferent :contents of the volatile :matter vmay fbe .accomplishedby means of suitnble 'apparatus 'represented in the accompanyiligdra-Wings, inwhioh1+ Figure l is;-a sectiomthroughthe.kilnandlixiviatimg tanks.- LFig. '.2 is@ :detail plan view fof fthe eva-poratng.and -coolingftanks Fig-3 .is a wentical longitudinal section :on theline XQFXv/of Figui Fig. 4 -is;a vertical cross section lon-the lineY'-Y ofFig. 3. Fignf .is a 'vertical -cross section onithe line Z4-fzof.Fig;.3.

Having -freferenoe :ato fthe accompanying drawings:

1.-peningthmugh yvhiohdried kelp `,is

entered;

2.+Ki1n 1in :which nombu ation takeseplace I 1ef-iGhamben-rinwwhiohLvolatematter is firstlisohmged, rsupersheated fatyfthe :bottom and With temperature regulated .atfthe'top by -coldwaterspassingtthnough; pipes.

7.-..-Gold Walterepipestofregulate tempera- 2 ture :Lt-dischargepointant chamber'.

-8.+`+Chamber dorntheseoond ldeposit of v voilatialeilmatter W-ifthtemperature-regulated by coldwvater pipeSfQ.

Srl-.Cold Weten :pipes to l.re ulate Atelfnlgaerature at thedischargeipoint of nha'mberS.

l0.-.-.-Metalx.pipes `passing through v`a tank of cold fwafterfdrainingitoward chamber 11.

11n-'Chamber @to :rece/ive ythe third 1-deposit ofuvoelatilomutter.

12.-Gla'mber torecei'yetcombustible gases; 13..-'rConneotionbetween-:gas ehamberil). and compression pump 14.

141-.Gascompneesion-pump. I 15.-Gas' storage tank int01--whieh the gasis `passedthrough a mater ibath whichv completely puriiesltm 16.-Passagefor iouerloW- iheat 'and Smoke from oil burner :141, lheeiting the-bottom of chamber 6 by circulation around iit.

17.--*"Siump .for the ianizttuneof wash: vand Water.

introduced.

A -l9.-f.-Pipe,connecting fslmipi with vcentr-ifugal .pump.f.. Y20H-Centrifugalfipumptforlevlating semilsolution. andycirculating-solution .while salts ciliesolve.l

QLTBipeQcmeetin-g centniugal pump with-"top :of .tank :to completecirculating system.

QQTLiXiniating tank with i450 fconical bottom.

23,-Pipe through Whichsbeafmffiseintroducedetoibottomsof coninal tanknl24a- Binche-ngepipeimf'lliinsoluhlermati521".

35..-#Pfijpeithnough ozvzhinhv clear, saturatedsolutionfenterseevaporat' system.'

,34. :Lliirst fheatndftarxsmevmpnrasinglsys tem in which sulates oflimeiandlmagnesiaum settleioutfandtnre disc stromnthe bottom'. i

QwslSeemrd heated of emponating system in which heat and gravity areincreased.

26.-Third heated tank of evaporating system where heat and gravity areincreased until sulfates ofvpotassium, sodium and lmag-l nesiumcrystallize out but remain in suspension through the motionof the wateras this tank is kept at a boiling point.

27.4Overlow for boiling liquor to pass into tank 29, carrying thecrystallized salts over with the liquor.

29.-Fourth period of evaporating system where the boiling liquor isallowed to cool to a temperature of 60 C. at which point all of thesulfates havegcrystallized out and the chlorids and iodidsr'emain insolution, passing to tank 30. v

30.-Fifth period of-evaporating system receiving liquor from tank 29wherein the temperature is increased to 100 C. and evaporation continuesuntil all of the sodium chlorid has crystallized out. The potassiumchloridthrough its increased solubility at this temperature remains insolution, passing to concrete coolingtanlis 31.

31.-Concrete cooling tanks where the solution from tank 30 is allowed tocool until all of the potassium chlorid has crystallized out, the motherliquor then being dried out and retorted to recover the iodin.

32.-Oil burner supplying heat for evaporating system.

33.-Sump to receive mother liquor from cooling tanks 31.

Sti-Smokel discharge from oil burner 32.

37.--Pipe connecting bottom of conical tank with centrifugal ump.

28.-Valves for disc arge of'sulfates from l heated evaporatingtanlsl'34.-

The sea-Weed or kelp is dried by any process to that condition lwhere itstill retains 15% to 20% of its original moisture, this amount beingnecessary to retain within the product that portion of the iodin,creosote and oils termed organic. This :dried seaweed or kelp is .placedin the closed kiln 2,

`constructed of pressed molded bricks of poy to enter the chamberonlygfast enough to v supply the vacuum created by the gas compressionpump, but not concentrated at any sulfates and iodids.

. The heatfis introduced through the cast iron bottom and maintained atan even temperature not to exceed 400 C. until combustion haspractically ceased on the inside. This completes the separation of thevolatile matter.

The volatile matter collecting in heated chamber 6 is re-distilled, allof the oils, gums and liquids passing over into chamber 8, vthe organiccarbon or paint pigment alone charge point is held above 120 C.

All of the gums and oils are deposited in `chamber 8, the temperature ofwhich is held about 70 C. allowing the creosote, acetic acid,`acetonea-nd alcohol to remain in suspension. The acetic acid, creosote, acetoneland alcohol are then condensed in passing through the cold ,Water tankand drained and deposited in chamber 11 from which they are takenre-distilled and separated. The combustible gas, which is then free ofall solids, is passed through a water bath to take o-ut any excess ofnon-combustible gases which may have been carried over therewith anddeposited in storage for factory uses. l The residual matter is thendischarged into the receiving sump 17, and there mixed with enough clearwater to form a semi-solution;

5 fused parts there may be. This semi-solultion is pumped to thelixiviating tank 22, I where sufficient clear water is added to fillthat tank with a saturated solution of the soluble salts. Superheatedsteam is then introduced through the pipe 23, entering the conicalvbottom and operated until the solu- C.; the connection of thecentrifugal pump being changed from the sump to the bottom of theconical tank which places all of the material in that tank in constantcir-l culation. During that circulation all yof the material passesthe'jet of super-hea-ted steam whichcompletely dissolves all of thesoluble material. The carbonates and a portion of the sulfates will nowsettle out, which completes the separation between the soluble andinsoluble matter. The clear solution is then drained from the top by aflexible pipe suporating system through pipe 35. The remaining solidsare then washed with clear Water,V circulated and heated in the samemanner and allowed to settle. The clear water drained off is then usedto form the next lsemi-solution inthe sump, and so repeated.l The solidmaterial is then discharged throughlpipe 24, dried out, pulverized andused as a basis or filler for fertilizers. Y

Having thus described my invention, what I claim and desire to secure byLetters Patent, is-

1. An apparatus for reducing kelp conremaining. The temperature at thedisthe cold water completely shattering any` conical bottom of thistank, the pump connection then changed to connect with thel tion thereinreaches a temperature of 100 f ported with a float and passed to theevapsisting of a porous kiln anda condensing apparatus in conjunctiontherewith, comprlsing means for separating and separately recovering theproducts of distillation as s they come from the kiln.

2. A n apparatus for treating kelp, comprising a. porous kiln having aheating compartment at the bottom and one side, and a series ofcondensing chambers for sepa.-

my hand in the presence of two subscribing wltnesses.

HARRY WILSON. Witnesses JOHN H. Hmmmo, IRVINE SINNm'r.

